In response to rising gas prices, a larger 252 cu in (4.1 L) version of the 3.8 L LD5 V6 was produced from 1980 through 1984 and marketed as an alternative to a V8. including Cadillac which offered the "big" Buick V6 in several models from 1980 to 1982 as a credit option to the troublesome V8-6-4 engine used in 1981 and early versions of the aluminum-block Cadillac HT-4100 V8 introduced in 1982.
It was also the standard powerplant in the front-drive Riviera and Olds Toronado from 1981 to 1984.
| Displ. | Type | Opt. Code | VIN Code | Bore (in.) | Stroke (in.) | Aspiration | Fuel Del. | Comp.Ratio | Torque / RPM | H.P. / RPM |
|---|---|---|---|---|---|---|---|---|---|---|
| 252ci/4.1L | V6 | LC4 | 4 | 3.965 | 3.4000 | Norm | Carb | 8.0:1 | 205/2000 | 125/4000 |
Firing Order 1-6-5-4-3-2
Distributor Rotation is Clockwise
| Engine | Timing | Comp PSI | Idle Spd. | S plug/Gap* | |||
|---|---|---|---|---|---|---|---|
| 231ci/3.8L | 15o BTDC1,2 | 100min 20% var | 650 in Dr. | RS-46SZ/.060 | A329C |
